Gas-engine.



w. KELLY. GAS ENGxNE. APPLICATION FfLEDfEB. 28, |910.

1,140,163.. 'fPatent-ed May 18, 1915.l

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GAS ENGINE. l APPucArl'on mlm FEB. 2 8. 19m.

Patented May 18, 1915.

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E' Il .g FCE i WILLIAM KELLY, oF DETROIT, MICHIGAN, AssIGNoR To MAXWELL MOTOR COMPANY, INCORPORATED, or DETROIT, MICHIGAN.

GAS-ENGINE.

Specification of Letters Patent.

Patent-@ii Mayas, 1915.

Apinication sied rebruaryas, 1910. sei-Iaiivasaeea To all whom it may concern:

Be it known that I, WILLIAM KELLY, a-

i citizen of the United States, residing at De- =troit, county of Wayne,'State of Michigan,

10 to make andu'se the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to gas engines and an object of my'improvements is to provide an 5 improved gas engine and one having a compact and convement arran ement of parts. I secure this object in the evice illustrated yin the accompanying drawings showing a multi-cylinder gas engine embodying my 1nvention. Figure 1, is a section on line 1 1, Figs.

" 3 and 6. Fig. 2, is a section on the line 2 2, Figs. 3 and 6, showing only the upper part of the crank case. Fig. 3, is a side elevation of a multi-cylinder gas engine ernbodying my invention. Fig. 4, is a detail section on the line indicated by 4-4, Fig. 1. Fig. 5, is a detail sectional plan view on the 0 is a plan view of the engine casing,the cover of the water-.jacket being removed' and closures for the passages opening to thevalves also being removed. Fig. 7 is an inverted plan view of the casing, the lower part of 5 the crank case being removed.

A1, A2, A3, A4 are cylinders cast integral with each other and with the crank case B and water jacket A. The water jacket is open atthe top, as indicated most distinctly 0 vin Fig. L6, except when closed by screwing thereon a cover a. j

b is a detachable lower portion of the crank case B. The portion b may be removed to permit access to the interior of the 5 crank case and workingparts, as indicated inFig.7. y

S is the main shaft of the engine and F is the y-wheel thereon.

E is a casin cast integral with the water- 0 jacket A and ormng a manifold into which the exhaust passages from all the cylinders open.

e is anexhaustpipeleading from the end of the manifold I is a casing cast integral vwith the water# jacket A and with the manifold E and forming a manifold with which the intake pas,- sages of all the cylinders communicate. There is an opening I5 (Fig. 5) in the lower wall ofthe manifold I with-which an intake pipe t communicates. There is a greater space between the two central cylin ders than between the others andthe intake pipe z' passes between said cylinders and communicates Awith the manifold I, as shown 'in Figs.V 1, 2, and 3.

-E1,l1`l2,lL3,E4 are exhaust valves, the passages which they govern opening directly int) Lhe manifold E, as indicated in Figs.2 an

I1, I2, I3, I4 are intake valves, the passages which they govern opening directly into the manifold I, as indicated 1n Figs. l and 4. There is a common Wall between the manifolds E and I.

e1, e2, e3, e1L are the valve rods governing the exhaust valves. f The outer exhaust rods e1, e4 are outside of the manifold I and the vinner exhaust rods e2, e3 pass through open ingsl in a solid portion N (Fig. 5) which projects from the inner wall of the manifold I. l

It will be observed that by the above construction a neat and compact arrangement ofthe intake and exhaust passages is secured,` that the charge passinginto the cylinders passes through the manifold I, which is adjacent to, and is heated by, the exhaust gases in the manifold E, so that condensa tion will not take place in the intake manifoldand the mixture will be. more uniform and complete. The manifolds being cast upon the water-jacket are therebyprevented from undue heating while the exhaust supplies heat to the intake gases.

.Claimsz- 1. In an explosion engine, a plurality of cylinders, an exhaust and intake manifold `cast integral and upon one side of the cylinplv..

'cast and upon one sid-3 @ymn ders, @ne of said manifolds 10eme@ @YG-ove 'he othel", a mv of exmus; and pews cmad side by side upm said side said cj/lindfs, in on@ plane, gsassages eading imm said exhauslf; polis t@ said exhaust manfo and passages ,sbdmg sai@ lower @mmm im pms/nce @MLM KELL 

